On Monday, July 30, 2012 14:36:07 maarten van damme wrote: > I have no idea what is wrong with my code and the error is not very > informative. Does anyone have any idea as to what the problem could be?
My first guess would be that your sorting function is not antisymmetric. I ran into such an issue recently: http://d.puremagic.com/issues/show_bug.cgi?id=8469 - Jonathan M Davis
